Tokamak GOLEM - Shot Database - #43998

The date of discharge execution24-03-05 16:27:36 The session missionExperiments/PlasmaEdge/SpontaneousTransportBarrierHePlasma/InitializationSpontaneous transport barrier in the He plasma The session ID 43965 The discharge commentHe floatDischarge command/Dirigent.sh --discharge --operation.discharge "style='standard',vacuum_shot='-1'" --infrastructure.bt_ecd "U_Bt=1000,t_Bt=0,O_Bt='CW',U_cd=550,t_cd=1000,O_cd='CW'" --infrastructur ...

     Technological parameters

• Working Gas: \(p\sub{chamber}\sup{discharge,before}\)=0.56 mPa; \(p\sub{chamber}\sup{discharge,pre}\)=15.10 mPa (\(p\sub{WG}\sup{request}\)= 15 mPa@\(X\sub{WG}\sup{request}\)=He )
• Toroidal magnetic field: \(U\sub{B\sub{t}}\sup{request}\)=1000 V@\(t\sub{B\sub{t}}\sup{request}\)=0.0 us
• Current drive field: \(U\sub{E\sub{cd}}\sup{request}\)=550 V@\(t\sub{cd}\sup{request}\)=1000.0 us

    Plasma:

• Plasma: yes or no: ☑
• Time parameters:\(\Delta t\sub{p}\)=11.04 ms (from:\(t\sub{start}\)=3.68 ms,to:\(t\sub{end}\)=14.72 ms)

    Plasma parameters:

• Loop voltage:\(\overline{U\sub{loop}}\)\(\)=11.73 V; \(\maximum{{\tau \in [discharge]}U\sub{loop}}\)=13.26 V; \(U\sub{breakdown}\)=0.00 V
• Toroidal magnetic field: \(\overline{B\sub{t}}\)=0.33 T; \(\max_{\tau \in [discharge]}B\sub{t}\)=0.46 T
• Plasma current: \(\overline{I\sub{p}}\)=1.70 kA; \(\max_{\tau \in [discharge]}I\sub{p}\)=2.18 kA; \(t\sub{Ip}\sup{max}\)=0.00 ms

Basic Diagnostics    

On stage diagnostics

Data flow	measurement →		digitization →		analysis →
Name	Placement	Experiment setup		Photo gallery	Data acquistition system		Raw data		Analysis results
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Off stage diagnostics

#

Data flow	measurement →		digitization →		analysis →
Name	Placement	Experiment setup		Photo gallery	Data acquistition system		Raw data		Analysis results
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ScintillationProbes:U_NIM_A1=600,U_NIM_A2=600,U_NIM_A3=600,U_NIM_A4=600
LangBallPenProbe:r_lp_tip='90',S_mode_lp='float',R_lp_div_osc='10e3',R_lp_div_nosc='1e6',R_bpp_div_osc='10e3',R_bpp_div_nosc='1e6',U_lp='-62.6',R_lp_isat='47'
LimiterMirnovCoils:vacuum_shot=-1

Analysis

Name	Analysis results
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Infrastructure

Chamber status (Working gas request:S_mode='U_v',S_gas='He',p_H=15,U_v=42)
Bt, Ecd:U_Bt=1000,t_Bt=0,O_Bt='CW',U_cd=550,t_cd=1000,O_cd='CW'
Position stabilization: main_switch='on',radial_switch='on',radial_waveform='1000,0;2000,-5;5000,0;6000,-20;30000,0',vertical_switch='on',vertical_waveform='1000,0;2000,-5;7000,-10;8000,-20;30000,0'
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Acknowledgement

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Thanks to the specific help

The tokamak GOLEM controll SW @